That's not a similar example to what's going on here.

Your example would have to include a situation in which the FBI makes copies of the keys to the house, copies of the hard-drives, etc. Then inevitably makes it embarrassingly easy for other parties to get access to those as well, permanently reducing your net security to almost zilch regardless of the outcome of the context and warrant.

And worse, in the process of gaining access to that one house and hard-drive, they simultaneously gain the potential to access millions of homes and hard-drives that have nothing to do with the warrant, and then those millions of houses and hard-drives see their net security reduced to essentially nothing.